The zmmailbox tool is used for mailbox management. The command can help administrators provision new mailboxes along with accounts, debug issues with a mailbox, and help with migrations.

You can invoke the zmmailbox command from within the zmprov command. You enter selectMailbox within zmprov to access the zmmailbox command connected to that specified mailbox. You can then enter zmmailbox commands until you type exit. Exit returns you to zmprov. This is useful when you want to create accounts and also pre-create some folders, tags, or saved searches at the same time.